Kitware/VTK
CMake/vtkOpenGLOptions.cmake
:52
option(VTK_OPENGL_HAS_EGL "Enable EGL support for creating GPU accelerated offscreen context" "${default_has_egl}")
option(VTK_OPENGL_HAS_EGL "Enable EGL support for creating GPU accelerated offscreen context" "${default_has_egl}")
mark_as_advanced(VTK_OPENGL_HAS_EGL)
message(FATAL_ERROR "VTK_OPENGL_HAS_EGL is ON, but APPLE platform does not support EGL!")
list(APPEND vtkPVOptions_defines
VTK_OPENGL_HAS_EGL)